GD115/21 SOUTH CHINA SEA M/V “HAI YANG SHI YOU 670” TOWING DRILLING PLATFORM “NAN HAI QI HAO” FROM 19-41-37.7N 112-25-09.2E TO 19-47-05.2N 112-21-55.5E FROM 4 TO 5 JUN. LENGTH OVERALL 400M SPEED 3KN TO 4KN SIGNAL LIGHTS AND SHAPES WILL BE EXHIBITED WIDE BERTH REQUESTED GUANGDONG MSA CHINA